Overall, a fine stay. When we arrived, the door was left open and we were concerned that anyone could have entered between the maid cleaning and our arrival. Additionally, there was half-eaten food in the fridge and while it was taken care of the next day, it smelled really bad. The apartment is in a great location - right near the canal boats to take you to Siam Paragon / modern Bangkok, yet also easily walk-able to Khao San Rd. and Grand Palace area.
The apartment is huge and is just a giant room. There were just blankets on the bed for us and no sheets (which I suppose weren't needed due to the heat). The windows don't lock however we felt secure being near a police station.
The apartment gets the job done but isn't luxurious. It was our first time in Bangkok so maybe other apartments have this but you can't flush toilet paper and throw it in a trash can next to the toilet instead. This left the bathroom smelling pretty terrible throughout our stay. Worth the price though.